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Siemens 5SY4225-6 — 2-Pole MCB (DIN Rail)

Siemens 5SY4225-6 SENTRON MCB, 2P B-Characteristic, 10kA

MPN5SY4225-6
Active

Siemens SENTRON 5SY4225-6, 2-pole miniature circuit breaker, B tripping characteristic, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 400 V AC, 60 V DC, halogen-free, silicon-free, 2 MW.

$60.03 – $167.83Ref. price · indicative, final on quote
Siemens 5SY4225-6 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY4225-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY4225-6 — Electrical
ParameterValue
Number of poles2
5SY4225-6 — Protection
ParameterValue
Tripping characteristic classB
Overvoltage categoryIII
5SY4225-6 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SY4225-6 — Environmental
ParameterValue
Pollution degree3
5SY4225-6 — Specifications
ParameterValue
At AC rated value400 V
According to EN 60898 rated value10 kA
With single-phase operation at AC rated value440 V
Energy Limitation Class3

Product details

It carries a 10 kA breaking capacity per EN 60898 and 20 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2. The unit is halogen-free and silicon-free, making it suitable for environments where material outgassing or particle contamination must be minimized — relevant for semiconductor fab and cleanroom-adjacent panels where low-shedding materials are specified.

The breaker is certified to IEC / EN 60898-1 and IEC / EN 60947-2, plus UL 1077 and CSA C22.2 No. 235. The 5 kA interrupting rating per UL 1077 / CSA is the North American ceiling; the 20 kA per IEC 60947-2 is the higher international ceiling. The part is sealable, which allows tamper-evident locking after commissioning.

Mechanical Integration

Environmental & Material

Humidity influence: max 95% at 55 °C, derating to 35% at 75 °C. Halogen-free and silicon-free construction reduces risk of corrosive outgassing in sealed enclosures — a consideration for semiconductor fab or food-processing panels where material compatibility is audited.

Frequently asked questions

What compliance documentation does Siemens provide for 5SY4225-6?

The breaker carries certifications to IEC / EN 60898-1, IEC / EN 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free, which supports RoHS/REACH compliance declarations.

Will 5SY4225-6 drop into a panel specified around 5SY7206-7CC without rewiring?

Both are 2-pole SENTRON MCBs on the same DIN-rail footprint (2 MW, 36 mm wide). The 5SY4225-6 uses a B characteristic; the 5SY7206-7CC uses a different curve and rating. Footprint and terminal layout are identical, so a direct mechanical swap is possible, but the tripping curve difference must be verified against the circuit's coordination study.

Where can I buy 5SY4225-6?

The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
5SY4225-6